Wednesday, May 06, 2009

A structural model of aging, brain and behavior

Possible working structural model that can be tested with measures of stimulus, behavior, neuro-functional, neuro-anatomical variables. The dynamic influences of age and "culture" can also be tested. Culture here refers to long-term experiences of any kind. More complex models can be postulated from this current framework by adding more factors, or measures, and by also constraining the specific weights and covariances. In the broadest sense, the weights and covariances are modeled linearly. However, certainly, non-linear functions can be imposed. The result of such impositions would be a neural network with non-linear activation functions.

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